School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110006, PR China.
School of Resources and Environment, Northeast Agricultural University, Harbin 150030, PR China.
Bioresour Technol. 2023 Nov;387:129695. doi: 10.1016/j.biortech.2023.129695. Epub 2023 Aug 19.
Vascular plants account for more than 80% of all biomass on earth and are potential precursors of biochar. However, the changes of vascular bundle have received less attention during the preparation of biochar. In this study, loofah sponge (LS), tangerine pith (TP), and rhodiola rosea (RR), were selected to show the role of vascular bundle in biochar through the pretreatment of vascular bundle. The results showed that the active biochar prepared with vascular bundle protection had high adsorption capacity for methylene blue (LS: 953.53 mg/g, TP: 714.77 mg/g, RR: 583.49 mg/g). The Brunauer-Emmett-Teller method was used to measure the specific surface area (SSA) of active biochar. The SSA of LS active biochar prepared by vascular bundle protection was 2262.67 m/g, and has high adsorption properties under different conditions. In conclusion, the protection of vascular bundle during biochar preparation is important to improve the utilization of biological resources and environmental adsorption.
维管束植物占地球上所有生物量的 80%以上，是生物炭的潜在前体。然而，在生物炭的制备过程中，维管束的变化受到的关注较少。在这项研究中，选择丝瓜络（LS）、蜜橘桔络（TP）和红景天（RR）通过维管束预处理来展示维管束在生物炭中的作用。结果表明，具有维管束保护的活性生物炭对亚甲基蓝具有高吸附能力（LS：953.53mg/g，TP：714.77mg/g，RR：583.49mg/g）。采用 Brunauer-Emmett-Teller 方法测量活性生物炭的比表面积（SSA）。通过维管束保护制备的 LS 活性生物炭的 SSA 为 2262.67m/g，在不同条件下具有较高的吸附性能。总之，在生物炭制备过程中保护维管束对于提高生物资源的利用率和环境吸附具有重要意义。
